Syrup-pump.



T. H. SGHUTT.

SYRUP PUMP.

APPLICATION FILED 1120.18, 1909.

Patented Aug. 16, 1910.

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'following 1s a specification,

, UNITED srArEs PATENT- OFFICE.

THEODOEE H. sonu'r'r, OE CLEVELAND, OHIO, ASSIGNOE `'ro THE BISHOP aBABOOGK COMPANY, OE CLEVELAND, OHIO, A CORPORATION OE OHIO.

SYRUP-PUMP.

Specification of Letters Patent.

Application led December 18, 1909. Serial No. 533,943.

of Cleveland, county of Cuyahoga,'and StateV of Ohio, have invented a neand useful lmprovement in Syrup-Pump of which the the principle. of theinvention being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

M f invention relates to pumps4 and has )articular relation to thatclass of pumps which is used in soda fountains for pumping syrup kfrom asuitable tank into a glass 'or similar receptacle. AThe objects of theinvention are the rovision of a pump of more simple and e ectiveoperation than pumps of this class now on the market, to render the pumpmore ,easily cleaned, and tomake it adjustable so that it may be adaptedfor use in varying conditions.

To the accomplishment of these and related ends said invention, then,consists of the means hereinafter described, and particularly pointedout in the claims. y

The annexed drawing and the following description set forth in detailcertain mechanisms embodying the invention, such disclosed meansconstituting, however, but one of the various mechanical forms in whichthe principle of the invention may be used.

In said annexed, drawing Figure 1 is a side elevation of a pumpembodying my invention, the tank being diagrammatically shown; Fig. 2 isa vertical section thereof; Fio'. 3 is a section of a detail, showing anadpistable part in a diiierent position than in the other figures.

lt will be understood that pumps `of this class are generally attachedto a removable cover of a containingtank. Such a tank A is showndiagrammatically in the drawings, while the removable cover isdesignated by reference letter a. Suspended afrom the cover a is acylinder B which has in its bottom a hole covered by a disk capable oflimited upward movement, the hole and disk thus Jforming a valve throughwhich the contents of the tank may be admitted into the cylinder of thepump. A discharge tube b leads from` the cylinder and is attached to thecover a, while above the cover it is connected with a discharge nozzleb2; it is this land engage the groove o8.

discharge tube b which serves to sus end the cylinder B from the cover aand in xed relation thereto. A piston b reciprocates in the cylinder.13,

- and attached to the piston is a two-part plston rod, the parts ofwhich are designated 1n the drawings by the letters o and o. The part chas near its upper end an annular groove @Sand over this end of the partfits a sleeve c2 1n which is an aperture which registers with the groovec3, so that a set screw o4r may project through this aperture The part cis screwed into the uoper end of the sleeve c2. The discharge nozzle b2is formed with a laterally extending plate D which extends partly overthe cover a; the plate D is formed on its under side with a. bosswhichextends downwardly through an opening in' the cover a, the platebeingsecured firmly against the cover by a lock nut d which engages theboss below the cover. The plate D and its boss are formedv with aIcentral opening and into this opening, above the cover a, is screwed asleeve d which forms a bearing for the upper part c of the pistonrod. Aknob E, attached to the upper end of part c', forms a handle for oerating such part. This knob E is provide with a depending interiorlythreaded fiange, and engaging the interior thread of such flange is asleeve e which has a bearing surface On sleeve d.. The spring eencircles the upper portion of the rod within the several sleeves, itsends respectively abutting against a shoulder formed in knob E and ashoulder formed in the boss of plate D, and this spring serves tonormally retain the rod in its uppermost position.

The several advantages of my improved device may be readily understoodfrom the drawings and the detailed description.

The spring constantly tends to raise the piston, and the upward movementof the piston is limited by contact of sleeve c2 with lock nut d. Thelength of stroke of the piston may be varied at will, however, byvarying the limit of its downward stroke. This may be easily and quicklyeected by screwing-the sleeve e a greater or less distance into theflange of knob E. The sleeve strikes the plate D when the rod isdepressed so that the late D thus is in e`ect a shoulder adapted) tolimit the downward stroke of the piston. This adjustability of thePatentedAug. 16, 1910.

y stroke highly advantageous in the practical' use of the pump, for` byvarying the stroke in this manner, amount of syrup may be dispensed by asingle stroke, as described.

A u'rther advantage of my complete pump exists in the provision of atwo-part piston rod. By loosening the set screw, the part of the pistonrod below the cover, together withl its attached piston may be quicklyremoved from the device so that the cylinder andJ the piston may bethorou hly cleansed.

ther modes of applying the principle of my invention may employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any ofthe followingclaims or the equivalent of such stated means `be employed.

f I therefore4 particularly point out and distinctlyl claim as myinvention 1. A pump of the class described, comprising'a supportingplate, a cylinder supported be ow the plate, a piston reciprocabletherein, a fixed tubular member supported by said plate, a piston rodextending through the plate and said member, a knob secured to said rod,a fixed shoulder encircling the rod, a sleeve screwed to said knob andadapted to engage said shoulder, said sleeve having a spring tending tomove the rod, said spring being inclosed by said sleeve and member.

2. A pump of the class described, comprising a supporting plate, acylinder supported below the plate, a piston reciprocable therein, aI'ixed tubular member extending up- .wardly from the plate, a piston rodextendobsecured to the upper `end of the rod, a xed annular shoulderencircling the rod, a sleeve screwed tosaid knob and adapted to engagesaid shoulder, said sleeve having a bearing on said member, and a springtending to move the rod, said spring being inclosed by said sleeve andmember.

a greater or less.

bearing on said member, and a mgthrough the plate and said member, a-

B. A pump of the class described, lcomprismg a supportmg plate, acylinder supported below the plate, a piston reciprocable therein, afixed tubular member extending u wardly from the late, a piston rodexten ing through the p ate and member, a hollow knob secured to theupper end of the rod, a lixed annular shoulder encirclin the rod, asleeve screwed into said knob and adapted to engage said shoulder, saidsleeve having a bearing on said member, and a spring tending to move therod, said spring being inclosed by said sleeve and member.

4. A pump of the class described, comprising a supporting plate, acylinder supported be ow the plate, a piston reciprocable therein, afixed tubular member extendin upwardly from the plate, a piston roextending through the plate and said member, a hollow knob secured tothe upper end of the rod, a xed upwardly facing an- Y nular shoulderencircling the rod, a hollow -`sleeve screwed into said knob andadapted,

on depression of the rod, to engage said shoulder, said sleeve having abearing on said member, and a spring inclosed by the knob and the sleeveand the tubular member and tending to elevate the rod.

5. A pump of the class described, comprising a supporting plate, a tubedepending therefrom, a cylinder supported at the lower end of said tubeand connected therewith, a piston reciprocable in the cylinder, a rodattached to the piston and provided with an annulafgroove near its upperend, a sleeve 'fitting over such end and provided with an aperture inits side, a screw projecting through the aperture and engaging thegroove, and a handled rod secured tov said sleeve and extending throughthe supporting plate. ,v Signed by me this 14th day of December, 1909.

THEODORE H. SCHUTT. Attested b E. H. VoGELroHL, E. MCKILLEN.

